Edie shows up on Susan's door and introduces herself as "the whore who lives down the street" and asks if she can borrow "a cup of condoms." See? Still funny. Susan asks if she's sure that will be enough. Edie tells Susan that she knows she doesn't like her, but she's here to do her a favor anyway. She tells her she was out to dinner last night and saw her husband with another woman. She feels bad saying it, but would want to know if she were in her shoes. She says, "You're welcome," and leaves. Susan stops Edie and says she knows this is just revenge because Susan judged her. Edie says if she'd wanted revenge, she would have joined them for a threesome. Susan says Karl would never cheat, and the woman, Brandy, was his secretary, who he was taking out for her birthday. Edie tips her hat to the classic "Taking my secretary out for her birthday" routine. Susan suggests going to Helen's so she can introduce them and they can swap stories about Ed's favorite positions. Edie says she's not the same as Brandy, because she isn't trying to break up a marriage. She's just having fun and helping a man through a midlife crisis. Susan snits that Edie's just a giver, and Edie tells Susan to go ahead and use all of her energy judging her and ignore the real problem. She says this is her area of expertise (she's an affair expert!) and she saw the look in that woman's eyes; she's in it for keeps. Susan asks her to leave, and Edie says she was trying to be a good neighbor, since this was the moral thing to do.
Back in the car, Susan says she found Brandy's bra in Karl's glove compartment three weeks later. Gaby says Edie really understood men [Although in this case her analysis was based on knowing women. - Z], and Mrs. McCluskey says all those years of research had to have helped. Susan can't help thinking about all of the times she and Edie sniped at each other, when they could have been good friends. Lynette tells Susan that if Edie knew what Susan was about to do for her, she'd forgive her for everything.